CA2663353A1 - Mill for grinding rough, stone-like bulk material, with axially parallel drive - Google Patents
Mill for grinding rough, stone-like bulk material, with axially parallel drive Download PDFInfo
- Publication number
- CA2663353A1 CA2663353A1 CA002663353A CA2663353A CA2663353A1 CA 2663353 A1 CA2663353 A1 CA 2663353A1 CA 002663353 A CA002663353 A CA 002663353A CA 2663353 A CA2663353 A CA 2663353A CA 2663353 A1 CA2663353 A1 CA 2663353A1
- Authority
- CA
- Canada
- Prior art keywords
- gear unit
- mill
- gear
- shaft
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000013590 bulk material Substances 0.000 title claims abstract description 10
- 239000003245 coal Substances 0.000 claims description 3
- 238000003801 milling Methods 0.000 abstract 4
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/006—Ring or disc drive gear arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/007—Mills with rollers pressed against a rotary horizontal disc
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention relates to a mill for milling rough, stone-like bulk material, comprising a milling plate (4) turnable around a vertical rotation axis (5). The milling plate (4) is driven by an electric motor (6), comprising a crankshaft (7) and a shaft axis (8). The electric motor (6) is arranged directly under the milling plate (4). The shaft axis (8) runs perpendicular.
Description
. _, Description Mill for grinding rough, stone-like bulk material, with axially parallel drive The present invention relates to a mill for grinding rough, stone-like bulk material, for example ore or coal, having a grinding table rotatable about a vertical rotation axis, wherein the grinding table can be driven by means of an electric motor which has a motor shaft with a shaft axis.
Such mills are generally known and are sold, for example, by Polysius AG, Germany, under the model designations Dorol and Quadropol. A diagram of such a mill can be retrieved, for example, at the Internet address http://www.polysius.com/imageneutraldetailbild.asp?id=353.
The known mill is explained below in conjunction with fig. 1, insofar as this is necessary for understanding the present invention.
According to fig. 1, the mill has a grinding chamber 1. The grinding chamber 1 has a grinding chamber base 2 and a grinding chamber wall 3 running around the grinding chamber 1. A
grinding table 4 is mounted on the grinding chamber base 2 in such a way that it is rotatable about a vertical rotation axis 5.
The grinding table 4 can be driven by means of an electric motor 6. The electric motor 6 has a motor shaft 7 with a shaft axis 8.
It is known in the prior art to arrange the electric motor 6 laterally under the grinding table 4. Reference is made purely by way of example to DE 33 02 049 Al and DE 35 07 913 Al.
AMENDED SHEET
The shaft axis 8 in this case runs horizontally. The motor shaft 7 acts on the grinding table 4 via a deflection or angular gear unit 9 - e.g. a bevel gear unit. The deflection gear unit 9, in addition to the deflection, converts a relatively high speed of the electric motor 6 to a markedly lower speed of the grinding table 4.
Rough, stone-like bulk material 10, for example lumps of coal or ore, is fed to the grinding chamber 1 in a known manner -for example by means of a delivery chute (not shown). On account of the centrifugal force, the bulk material 10 is directed radially outward in the direction of the grinding chamber wall 3. The bulk material 10 is ground there by means of grinding rollers 11 which roll on the grinding table 4. The grinding rollers 11 are as a rule not driven themselves.
However, driving of the grinding rollers 11 would be possible.
The ground bulk material - designated as ground stock 12 to distinguish it from the unground bulk material 10 - is discharged from the grinding chamber 1 in a known manner, for example by means of a blower (not shown).
The known mill works very well, but is of relatively complicated construction and costly. The deflection gear unit 9 is also relatively susceptible to faults and requires a lot of maintenance.
It is also known in the prior art that the electric motor can be arranged directly under the grinding table and the shaft axis can run perpendicularly. Reference is made purely by way of example to DE 103 05 915 Al, DE 1 957 580 Al, US 2,192,310 A
and US 5,667,149 A.
AMENDED SHEET
,. , PCT/EP2007/058667 - 2a -2006P11149wovS
In the known configurations, the motor shaft is connected to the grinding table directly, i.e. without a gear unit arranged in between.
The object of the present invention is to improve the known mill in such a way that it can be produced in a simpler and AMENDED SHEET
more cost-effective manner, is simpler to maintain in continuous operation and is less susceptible to faults.
The object is achieved in a mill of the last-mentioned type in that the electric motor is designed as an external-rotor motor.
The motor shaft can be connected to the grinding table directly. If a gear unit is present, the motor shaft is certainly connected to the grinding table via a gear unit, but the gear unit has a gear unit input shaft and a gear unit output shaft which have rotation axes parallel to one another.
In a preferred configuration, the rotation axes of the gear unit input shaft and of the gear unit output shaft (and consequently also the shaft axis and the rotation axis) are even in alignment with one another. An example of a gear unit which has rotation axes in alignment with one another is an epicyclic gear unit, which has a sun gear, at least one planet gear and a ring gear.
In the case of an epicyclic gear unit, various combinations are possible, with which the gear unit input shaft and the gear unit output shaft interact with gears of the epicyclic gear unit. Depending on the configuration of the epicyclic gear unit, the gear unit input shaft can be connected in a rotationally fixed manner to the sun gear, the ring gear or a bearing arrangement on which the at least one planet gear is rotatably mounted about the sun gear. Likewise, the gear unit output shaft can be connected in a rotationally fixed manner to the sun gear, the ring gear or the bearing arrangement of the planet gear. Of course, in an actual specific configuration of the epicyclic gear unit, the gear unit input shaft and the gear unit output shaft must not be connected to the same element (sun gear, ring gear, bearing arrangement of the planet gear).
AMENDED SHEET
PCT/EP2007/058667 - 3a -It is currently preferred for the motor shaft to be connected to the sun gear. In this case, the grinding table AMENDED SHEET
is connected in a rotationally fixed manner either to the ring gear or to the bearing arrangement for the at least one planet gear.
A rotor of the external-rotor motor is preferably of bell-shaped design.
The electric motor is preferably designed as a low-speed, high-pole drive. Alternatively, it may be designed as an asynchronous motor or as a synchronous motor. In the case of a synchronous motor, the drive may alternatively be excited electrically or permanently magnetically. The electric motor may be fed directly from the supply network or - preferably -via a converter.
Further advantages and details follow from the description below of exemplary embodiments in conjunction with the drawings, in which, in diagrammatic illustrations:
fig. 1 shows a mill of the prior art, fig. 2 shows a grinding table with electric direct drive, and figs 3 and 4 show a grinding table with drive via a gear unit.
The description below of the present invention and of its configurations is based on the mill described above in conjunction with fig. 1. Only the differences of the configurations according to the invention are therefore dealt with in more detail below. The other statements with respect to fig. 1 still apply.
Furthermore, the present invention is described in conjunction with a permanently excited synchronous motor which is designed as an external-rotor motor. However, it would be readily AMENDED SHEET
PCT/EP2007/058667 - 4a -possible to use, instead of the permanently excited synchronous motor, an electrically excited synchronous motor or an asynchronous motor.
According to fig. 2, the electric motor 6 is arranged directly under the grinding table 4. It has a stator winding 13 which is fastened to a stator holder 14. The stator winding 13 interacts with a rotor 15 which in the present case has permanent magnets 16. The rotor 15 is preferably of bell-shaped design. It can be mounted on the motor shaft 7 or can terminate it. According to fig. 2, the shaft axis 8 of the motor shaft 7 runs perpendicularly.
In the configuration in fig. 2, the motor shaft 7 is connected to the grinding table 4 directly, that is to say without a gear unit in between. The shaft axis 8 of the motor shaft 7 is therefore in alignment with the rotation axis 5 of the grinding table 4.
AMENDED SHEET
If necessary, the grinding table 4 can be supported radially on the outside and/or between its radially outer end and the motor shaft 7. In the case of a bell-shaped configuration of the rotor 15, the rotor 15 can even be identical to the grinding table 4.
The illustration in fig. 3 schematically corresponds essentially to the illustration in fig. 2. In contrast to the configuration in fig. 2, however, the grinding table 4 in the configuration in fig. 3 is connected to the motor shaft 7 via a gear unit 17. The gear unit 17 has a gear unit input shaft 18 and a gear unit output shaft 19. The gear unit input shaft 18 and the gear unit output shaft 19 have rotation axes 20 which run parallel to one another. The rotation axes 20 may be offset. However, they are preferably in alignment with one another.
According to fig. 4, which shows a special form of the configuration in fig. 3, the gear unit 17 is designed as an epicyclic gear unit 17. It has a sun gear 21, at least one planet gear 22 and a ring gear 23. According to the configuration in fig. 4, the motor shaft 7 is connected to the sun gear 21 in a rotationally fixed manner.
According to fig. 4, the grinding table 4 is connected to the ring gear 23 in a rotationally fixed manner. The at least one planet gear 22 is rotatably mounted on a bearing arrangement 24. The bearing arrangement 24 is rotatable relative to the sun gear 21 and relative to the ring gear 23.
As an alternative to the configuration in fig. 4, the grinding table 4 could also be connected to the bearing arrangement 24 in a rotationally fixed manner.
By means of the present invention, it is possible to replace the electric motor 6 of the prior art running at a relatively PCT/EP2007/058667 - 5a -high speed with an electric motor 6 running at a considerably lower speed. The deflection gear unit 9, which requires a lot of maintenance and is susceptible to faults, can either be dispensed with or be replaced with a considerably more reliable gear unit 17 which has 2006P11149wous shafts 18, 19 running in parallel. Gear friction losses do not occur or can be reduced. The efficiency and the availability of the mill according to the invention are greater than in the prior art. Higher specific outputs can also be realized.
The above description serves solely to explain the present invention. However, the scope of protection of the present invention is to be determined solely by the attached claims.
Such mills are generally known and are sold, for example, by Polysius AG, Germany, under the model designations Dorol and Quadropol. A diagram of such a mill can be retrieved, for example, at the Internet address http://www.polysius.com/imageneutraldetailbild.asp?id=353.
The known mill is explained below in conjunction with fig. 1, insofar as this is necessary for understanding the present invention.
According to fig. 1, the mill has a grinding chamber 1. The grinding chamber 1 has a grinding chamber base 2 and a grinding chamber wall 3 running around the grinding chamber 1. A
grinding table 4 is mounted on the grinding chamber base 2 in such a way that it is rotatable about a vertical rotation axis 5.
The grinding table 4 can be driven by means of an electric motor 6. The electric motor 6 has a motor shaft 7 with a shaft axis 8.
It is known in the prior art to arrange the electric motor 6 laterally under the grinding table 4. Reference is made purely by way of example to DE 33 02 049 Al and DE 35 07 913 Al.
AMENDED SHEET
The shaft axis 8 in this case runs horizontally. The motor shaft 7 acts on the grinding table 4 via a deflection or angular gear unit 9 - e.g. a bevel gear unit. The deflection gear unit 9, in addition to the deflection, converts a relatively high speed of the electric motor 6 to a markedly lower speed of the grinding table 4.
Rough, stone-like bulk material 10, for example lumps of coal or ore, is fed to the grinding chamber 1 in a known manner -for example by means of a delivery chute (not shown). On account of the centrifugal force, the bulk material 10 is directed radially outward in the direction of the grinding chamber wall 3. The bulk material 10 is ground there by means of grinding rollers 11 which roll on the grinding table 4. The grinding rollers 11 are as a rule not driven themselves.
However, driving of the grinding rollers 11 would be possible.
The ground bulk material - designated as ground stock 12 to distinguish it from the unground bulk material 10 - is discharged from the grinding chamber 1 in a known manner, for example by means of a blower (not shown).
The known mill works very well, but is of relatively complicated construction and costly. The deflection gear unit 9 is also relatively susceptible to faults and requires a lot of maintenance.
It is also known in the prior art that the electric motor can be arranged directly under the grinding table and the shaft axis can run perpendicularly. Reference is made purely by way of example to DE 103 05 915 Al, DE 1 957 580 Al, US 2,192,310 A
and US 5,667,149 A.
AMENDED SHEET
,. , PCT/EP2007/058667 - 2a -2006P11149wovS
In the known configurations, the motor shaft is connected to the grinding table directly, i.e. without a gear unit arranged in between.
The object of the present invention is to improve the known mill in such a way that it can be produced in a simpler and AMENDED SHEET
more cost-effective manner, is simpler to maintain in continuous operation and is less susceptible to faults.
The object is achieved in a mill of the last-mentioned type in that the electric motor is designed as an external-rotor motor.
The motor shaft can be connected to the grinding table directly. If a gear unit is present, the motor shaft is certainly connected to the grinding table via a gear unit, but the gear unit has a gear unit input shaft and a gear unit output shaft which have rotation axes parallel to one another.
In a preferred configuration, the rotation axes of the gear unit input shaft and of the gear unit output shaft (and consequently also the shaft axis and the rotation axis) are even in alignment with one another. An example of a gear unit which has rotation axes in alignment with one another is an epicyclic gear unit, which has a sun gear, at least one planet gear and a ring gear.
In the case of an epicyclic gear unit, various combinations are possible, with which the gear unit input shaft and the gear unit output shaft interact with gears of the epicyclic gear unit. Depending on the configuration of the epicyclic gear unit, the gear unit input shaft can be connected in a rotationally fixed manner to the sun gear, the ring gear or a bearing arrangement on which the at least one planet gear is rotatably mounted about the sun gear. Likewise, the gear unit output shaft can be connected in a rotationally fixed manner to the sun gear, the ring gear or the bearing arrangement of the planet gear. Of course, in an actual specific configuration of the epicyclic gear unit, the gear unit input shaft and the gear unit output shaft must not be connected to the same element (sun gear, ring gear, bearing arrangement of the planet gear).
AMENDED SHEET
PCT/EP2007/058667 - 3a -It is currently preferred for the motor shaft to be connected to the sun gear. In this case, the grinding table AMENDED SHEET
is connected in a rotationally fixed manner either to the ring gear or to the bearing arrangement for the at least one planet gear.
A rotor of the external-rotor motor is preferably of bell-shaped design.
The electric motor is preferably designed as a low-speed, high-pole drive. Alternatively, it may be designed as an asynchronous motor or as a synchronous motor. In the case of a synchronous motor, the drive may alternatively be excited electrically or permanently magnetically. The electric motor may be fed directly from the supply network or - preferably -via a converter.
Further advantages and details follow from the description below of exemplary embodiments in conjunction with the drawings, in which, in diagrammatic illustrations:
fig. 1 shows a mill of the prior art, fig. 2 shows a grinding table with electric direct drive, and figs 3 and 4 show a grinding table with drive via a gear unit.
The description below of the present invention and of its configurations is based on the mill described above in conjunction with fig. 1. Only the differences of the configurations according to the invention are therefore dealt with in more detail below. The other statements with respect to fig. 1 still apply.
Furthermore, the present invention is described in conjunction with a permanently excited synchronous motor which is designed as an external-rotor motor. However, it would be readily AMENDED SHEET
PCT/EP2007/058667 - 4a -possible to use, instead of the permanently excited synchronous motor, an electrically excited synchronous motor or an asynchronous motor.
According to fig. 2, the electric motor 6 is arranged directly under the grinding table 4. It has a stator winding 13 which is fastened to a stator holder 14. The stator winding 13 interacts with a rotor 15 which in the present case has permanent magnets 16. The rotor 15 is preferably of bell-shaped design. It can be mounted on the motor shaft 7 or can terminate it. According to fig. 2, the shaft axis 8 of the motor shaft 7 runs perpendicularly.
In the configuration in fig. 2, the motor shaft 7 is connected to the grinding table 4 directly, that is to say without a gear unit in between. The shaft axis 8 of the motor shaft 7 is therefore in alignment with the rotation axis 5 of the grinding table 4.
AMENDED SHEET
If necessary, the grinding table 4 can be supported radially on the outside and/or between its radially outer end and the motor shaft 7. In the case of a bell-shaped configuration of the rotor 15, the rotor 15 can even be identical to the grinding table 4.
The illustration in fig. 3 schematically corresponds essentially to the illustration in fig. 2. In contrast to the configuration in fig. 2, however, the grinding table 4 in the configuration in fig. 3 is connected to the motor shaft 7 via a gear unit 17. The gear unit 17 has a gear unit input shaft 18 and a gear unit output shaft 19. The gear unit input shaft 18 and the gear unit output shaft 19 have rotation axes 20 which run parallel to one another. The rotation axes 20 may be offset. However, they are preferably in alignment with one another.
According to fig. 4, which shows a special form of the configuration in fig. 3, the gear unit 17 is designed as an epicyclic gear unit 17. It has a sun gear 21, at least one planet gear 22 and a ring gear 23. According to the configuration in fig. 4, the motor shaft 7 is connected to the sun gear 21 in a rotationally fixed manner.
According to fig. 4, the grinding table 4 is connected to the ring gear 23 in a rotationally fixed manner. The at least one planet gear 22 is rotatably mounted on a bearing arrangement 24. The bearing arrangement 24 is rotatable relative to the sun gear 21 and relative to the ring gear 23.
As an alternative to the configuration in fig. 4, the grinding table 4 could also be connected to the bearing arrangement 24 in a rotationally fixed manner.
By means of the present invention, it is possible to replace the electric motor 6 of the prior art running at a relatively PCT/EP2007/058667 - 5a -high speed with an electric motor 6 running at a considerably lower speed. The deflection gear unit 9, which requires a lot of maintenance and is susceptible to faults, can either be dispensed with or be replaced with a considerably more reliable gear unit 17 which has 2006P11149wous shafts 18, 19 running in parallel. Gear friction losses do not occur or can be reduced. The efficiency and the availability of the mill according to the invention are greater than in the prior art. Higher specific outputs can also be realized.
The above description serves solely to explain the present invention. However, the scope of protection of the present invention is to be determined solely by the attached claims.
Claims (7)
1. A mill for grinding rough, stone-like bulk material (10), for example ore or coal, having a grinding table (4) rotatable about a vertical rotation axis (5), wherein the grinding table (4) can be driven by means of an electric motor (6) which has a motor shaft (7) with a shaft axis (8), wherein the electric motor (6) is arranged directly under the grinding table (4) and the shaft axis (8) runs perpendicularly, characterized in that the electric motor (6) is designed as an external-rotor motor (6).
2. The mill as claimed in claim 1, characterized in that the motor shaft (7) is connected directly to the grinding table (4).
3. The mill as claimed in claim 1, characterized in that the motor shaft (7) is connected to the grinding table (4) via a gear unit (17) which has a gear unit input shaft (18) and a gear unit output shaft (19), and in that the gear unit input shaft (18) and the gear unit output shaft (19) have rotation axes (20) parallel to one another.
4. The mill as claimed in claim 3, characterized in that the rotation axes (20) of the gear unit input shaft (18) and of the gear unit output shaft (19) are in alignment with one another.
5. The mill as claimed in claim 4, characterized in that the gear unit (17) is designed as an epicyclic gear unit (17), which has a sun gear (21), at least one planet gear (22) and a ring gear (23).
6. The mill as claimed in claim 5, characterized in that the motor shaft (7) is connected to the sun gear (21) in a rotationally fixed manner, and the grinding table (4) is connected in a rotationally fixed manner either to the ring gear (23) or to the bearing arrangement (24) on which the at least one planet gear (22) is rotatably mounted.
7. The mill as claimed in one of the above claims, characterized in that a rotor (15) of the external-rotor motor (6) is of bell-shaped design.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006043179A DE102006043179A1 (en) | 2006-09-14 | 2006-09-14 | Mill for grinding coarse, stone-like bulk material with axis-parallel drive |
| DE102006043179.0 | 2006-09-14 | ||
| PCT/EP2007/058667 WO2008031694A1 (en) | 2006-09-14 | 2007-08-21 | Mill for milling rough, stone-like bulk material with parallel to the axis drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2663353A1 true CA2663353A1 (en) | 2008-03-20 |
Family
ID=38739435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002663353A Abandoned CA2663353A1 (en) | 2006-09-14 | 2007-08-21 | Mill for grinding rough, stone-like bulk material, with axially parallel drive |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20100230520A1 (en) |
| EP (1) | EP2063991B1 (en) |
| CN (1) | CN101516514A (en) |
| AT (1) | ATE462496T1 (en) |
| AU (1) | AU2007296832A1 (en) |
| CA (1) | CA2663353A1 (en) |
| DE (2) | DE102006043179A1 (en) |
| RU (1) | RU2009113817A (en) |
| WO (1) | WO2008031694A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5683465B2 (en) | 2008-08-22 | 2015-03-11 | エフ・エル・スミス・エー・エス | Heavy-duty driving device and mill driven thereby |
| DE102009012353C5 (en) | 2009-03-09 | 2013-08-22 | ThyssenKrupp Resource Technologies AG | roller mill |
| PL2295147T3 (en) | 2009-09-10 | 2012-06-29 | Flender Gmbh | Mill drive system |
| ES2409115T3 (en) | 2010-04-19 | 2013-06-25 | Siemens Aktiengesellschaft | Mill drive system |
| DK2457663T3 (en) | 2010-11-29 | 2014-03-17 | Siemens Ag | Gear Motor for a mill-drivanlæg |
| EP2641658A1 (en) | 2011-02-24 | 2013-09-25 | Siemens Aktiengesellschaft | Gear motor for a mill drive system |
| EP2508754B1 (en) | 2011-04-04 | 2016-03-30 | Siemens Aktiengesellschaft | Drive system for a wind turbine |
| EP2541096A1 (en) | 2011-06-30 | 2013-01-02 | Siemens Aktiengesellschaft | Drive system for a wind turbine |
| ES2475993T3 (en) | 2011-06-30 | 2014-07-11 | Siemens Aktiengesellschaft | Drive system for a wind turbine |
| EP2573386B1 (en) | 2011-09-26 | 2014-10-29 | Siemens Aktiengesellschaft | Drive system for a wind turbine |
| CN102716780B (en) * | 2012-06-29 | 2014-12-03 | 冯桂宏 | Combined stator/rotor permanent-magnet outer rotor motor directly-driven vertical mill millstone |
| CN102716785B (en) * | 2012-06-29 | 2014-12-03 | 冯桂宏 | Direct driving vertical mill millstone for combined fixed rotor permanent-magnet electric motor |
| DK177932B1 (en) * | 2013-12-20 | 2015-01-19 | Smidth As F L | Drive arrangement for a mill |
| DE102014002867A1 (en) * | 2014-02-18 | 2015-08-20 | Renk Aktiengesellschaft | Drive arrangement for a vertical roller mill |
| DE102014011846B4 (en) * | 2014-08-08 | 2024-10-10 | Renk Gmbh | Drive arrangement of a vertical roller mill and method for operating the same |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2192310A (en) * | 1938-06-30 | 1940-03-05 | Stanley D Hartshorn | Differential roll crusher |
| CH404368A (en) * | 1962-01-22 | 1965-12-15 | Forsch Inst Prof Ing Chem P Wi | Process and device for the treatment of flowable substances by high-frequency vibrations |
| US3366338A (en) * | 1965-12-07 | 1968-01-30 | Foster Wheeler Corp | Segment-type grinding ring |
| DE1957580A1 (en) * | 1969-11-15 | 1972-01-05 | Pfeiffer Barbarossawerke | Mill drive |
| DE3302049A1 (en) * | 1983-01-22 | 1984-07-26 | F. Tacke KG Maschinenfabrik, 4440 Rheine | Gear arrangement, especially for vertical mills |
| DE3507913C2 (en) * | 1985-03-06 | 1995-07-20 | Thyssen Industrie | Drive, in particular drive for mills, preferably for grinding coal |
| US5020734A (en) * | 1989-07-20 | 1991-06-04 | Foster Wheeler Energy Corporation | Pulverizer having rotatable table with replaceable air port segments |
| US5667149A (en) * | 1995-07-03 | 1997-09-16 | Foster Wheeler Energy Corporation | Solids pulverizer mill and process utilizing interactive air port nozzles |
| JP4510362B2 (en) * | 2001-11-30 | 2010-07-21 | 俊郎 土肥 | CMP apparatus and CMP method |
| DE10305915A1 (en) * | 2003-02-13 | 2004-08-26 | Alstom Power Boiler Gmbh | Rolling mill for e.g. dig-damp hard coal, includes driver with a ring engine that is concentric to a hollow shaft which in turn directly propels a meal plate, the shaft connected with a rotor |
| DE102004049549A1 (en) * | 2004-03-24 | 2005-10-13 | Diehl Ako Stiftung & Co. Kg | Motor as direct drive and method of mounting the motor |
| DE102005037668B4 (en) * | 2005-08-05 | 2007-10-25 | Vecoplan Maschinenfabrik Gmbh & Co. Kg | Crushing device with three-phase synchronous motor and integrated planetary gear stage |
| US7946516B1 (en) * | 2009-12-31 | 2011-05-24 | Flsmidth A/S | Feed chute for vertical roller mill |
-
2006
- 2006-09-14 DE DE102006043179A patent/DE102006043179A1/en not_active Withdrawn
-
2007
- 2007-08-21 DE DE502007003347T patent/DE502007003347D1/en active Active
- 2007-08-21 RU RU2009113817/21A patent/RU2009113817A/en not_active Application Discontinuation
- 2007-08-21 WO PCT/EP2007/058667 patent/WO2008031694A1/en active Application Filing
- 2007-08-21 EP EP07802753A patent/EP2063991B1/en not_active Not-in-force
- 2007-08-21 CA CA002663353A patent/CA2663353A1/en not_active Abandoned
- 2007-08-21 AU AU2007296832A patent/AU2007296832A1/en not_active Abandoned
- 2007-08-21 US US12/440,884 patent/US20100230520A1/en not_active Abandoned
- 2007-08-21 CN CNA2007800340529A patent/CN101516514A/en active Pending
- 2007-08-21 AT AT07802753T patent/ATE462496T1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| ATE462496T1 (en) | 2010-04-15 |
| DE102006043179A1 (en) | 2008-03-27 |
| CN101516514A (en) | 2009-08-26 |
| WO2008031694A1 (en) | 2008-03-20 |
| EP2063991B1 (en) | 2010-03-31 |
| EP2063991A1 (en) | 2009-06-03 |
| US20100230520A1 (en) | 2010-09-16 |
| RU2009113817A (en) | 2010-10-20 |
| DE502007003347D1 (en) | 2010-05-12 |
| AU2007296832A1 (en) | 2008-03-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |